chore(release): bump version to 0.9.2

[ewen-poch]

Release prep for v0.9.2. Bumps the single source of truth from 0.9.1 to 0.9.2 and updates the docs for what landed since v0.9.1 (40 PRs). This is a patch release: no breaking changes and no Roadmap phase status changes.

Since v0.9.1 (headline):

• Immediate specialist handoff on the in-flight turn (feat(specialist): add immediate specialist handoff #607)
• Completed-turn agent framework and model identification (feat(workspace): show completed turn runtime icons #613)
• Context-usage persistence across restarts (feat(context-usage): persist usage across restarts #616)
• Windows renderer crash recovery with automatic reload (fix(windows-renderer): recover from renderer crashes #610)
• Fixes: notebook session lifecycle serialization (fix(notebook): serialize session registry lifecycle #599), environment lease disposal (fix(notebook): close environment leases on disposal #585), stale executor callbacks (fix(notebook): ignore stale executor callbacks #609), control RPC across ACP cleanup (fix(notebook): preserve control RPC capability across ACP cleanup #614), incompatible Claude session resume recovery (fix(acp): recover incompatible Claude session resumes #611), Codex local Responses bridge proxy bypass (fix(codex): bypass proxies for local Responses bridge #608), SSH Compute Skill materialization (fix(compute): unify SSH Compute Skill materialization #601), user message width (fix(workspace): let user messages use available width #600), semantic runtime label icons (fix(workspace): use semantic runtime label icons #618), Electron adapter installation rollback (fix(runtime): roll back Electron adapter installation #589)
• Performance: activity groups derived without model control calls (perf(activity-groups): derive groups without model control calls #617), reduced agent context overhead (perf(acp): reduce agent context overhead #623)
• Settings navigation: Model and Agent as primary tabs (style(settings-nav): make model and agent primary tabs #606)
• CI: consolidated runner bundles (ci(pr-gate): consolidate runner bundles #602), trusted runner bundle execution (ci(pr-gate): prepare trusted runner bundle execution #598), dependency-aware shadow gate (ci(pr-gate): add dependency-aware shadow gate #592), Windows path portability preflight (ci(windows): extend path portability preflight #584)
• Broad ownership refactor: provider account, agent runtime, backend resolution, application event hub, transport workflow extraction, headless task runner, notebook session aggregate and runtime binding, ACP reviewer/session/artifact/prompt owners

Doc changes in this PR: README.md — version callout, project status, and agent-workflow capability row updated; ROADMAP.md — specialist profile bullet (immediate handoff), workspace bullet (context-usage persistence, completed-turn identification), capability map rows updated, and "Where We Are Today" paragraph extended.

Testing: No code changed — version + docs only. Verification via CI.

Release: Tag v0.9.2 (annotated, message Open Science v0.9.2) cut on merge commit.

[github-actions]

Codex Review

Verdict: mergeable

No actionable findings.

Summary: No concrete merge-blocking defects found. The version is consistently updated in package.json and package-lock.json, and the documentation changes align with the features present in the base revision.

[github-actions]

Codex Review

Verdict: mergeable

No actionable findings.

Summary: The release bump is consistent with the repository’s desktop-release convention: root package.json and both root package-lock version fields are 0.9.2, while the separately versioned npm package remains 0.1.0 as documented. No concrete merge-blocking defect was found.